What does the axial portion of the body include?

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The axial portion of the human body includes the bones, muscles and organs in the center of the human body starting from the head down. Basically, the axial part of the body is the trunk. Most of the life saving functions of the body happen in the axial portion of the body. This part does not include the arms, shoulders, legs and pelvic area.

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The bones of the axial skeleton include several bones of the cranium, 24 bones of the vertebrae and the sacrum, which is a fused bone. The muscles in the axial portion of the body are even more numerous than the bones and include the erector spinea, rotatores and masseter, to name a few. A couple of the organs in the axial portion of the body include the brain, eyes, heart and lungs.

The axial portion of the body includes the organs that, for the most part, regulate homeostasis. Many of the life-saving functions that occur within the body happen in the axial portion. There is one non-essential system of the body that resides in the axial portion of the body. That system is reproduction, which has nothing to do with survival of the actual human body.